Adding support for params

lib/buildUrl.js

@@ -0,0 +1,45 @@
+'use strict';
+
+var forEach = require('./forEach');
+
+function encode(val) {
+  return encodeURIComponent(val).
+    replace(/%40/gi, '@').
+    replace(/%3A/gi, ':').
+    replace(/%24/g, '$').
+    replace(/%2C/gi, ',').
+    replace(/%20/g, '+');
+}
+
+module.exports = function buildUrl(url, params) {
+  if (!params) {
+    return url;
+  }
+
+  var parts = [];
+
+  forEach(params, function (val, key) {
+    if (val === null || typeof val === 'undefined') {
+      return;
+    }
+    if (Object.prototype.toString.call(val) !== '[object Array]') {
+      val = [val];
+    }
+
+    forEach(val, function (v) {
+      if (Object.prototype.toString.call(v) === '[object Date]') {
+        v = v.toISOString();
+      }
+      else if (typeof v === 'object') {
+        v = JSON.stringify(v);
+      }
+      parts.push(encode(key) + '=' + encode(v));
+    });
+  });
+
+  if (parts.length > 0) {
+    url += (url.indexOf('?') === -1 ? '?' : '&') + parts.join('&');
+  }
+
+  return url;
+};